jimwhen 10 Pack T8 T10 T12 U-Bend Light Fixture,LED U Shaped Bulbs,18W(40W Equivalent),2200LM Super Bright,5000K Daylight,Dual-End Powered,Ballast Bypass,2FT LED U Bent Light Bulb for Office,School - - Amazon.com
7W U Shaped Fluorescent Microscope Light Bulb
U-Shaped Fluorescent Lamp, T8, Medium Bi-Pin (G13), Lumens 2800, 4100 K Color Temperature - Grainger